10 Science - Term 1 revision (Biology & Physics)

Front

What is crossing over in meiosis?

Back

Crossing over is the process during meiosis where homologous chromosomes exchange segments of genetic material, leading to genetic variation in gametes.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken. Formula: Speed = Distance / Time.

Front

What does Newton's third law state?

Back

Newton's third law states that for every action, there is an equal and opposite reaction.

Front

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time, allowing for the calculation of distance and acceleration.

Front

What is the difference between displacement and distance?

Back

Displacement is the shortest distance from the initial to the final position of an object, and it has both magnitude and direction, while distance is the total path length traveled without regard to direction.

Front

What is the formula for calculating displacement?

Back

Displacement = Final position - Initial position.

Front

What is random assortment in meiosis?

Back

Random assortment is the process during meiosis where chromosomes are distributed randomly into gametes, contributing to genetic diversity.

Front

What is the significance of the Peregrine falcon's speed?

Back

The Peregrine falcon's speed of 106 m/s during a dive illustrates the concept of maximum velocity in animals and adaptations for hunting.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's second law of motion?

Back

Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Formula: F = ma.